package priv.lirenhe.javabase.charpter03_4_03;

public class People extends Biology{

	private String think;
	
	public People() {
		this.think = "can think";
	}
	
	public String doThink(){
		this.think = "do" + this.think;
		System.out.println("People"+this.think);
		return this.think;
	}

}
